Other
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...20711006c&link_type=abstract
American Astronomical Society Meeting 207, #110.06; Bulletin of the American Astronomical Society, Vol. 37, p.1339
Other
1
Scientific paper
We have obtained nearly uninterrupted broadband optical photometry of the transiting exoplanet system HD 209458 with the MOST (Microvariability & Oscillation of STars) satellite: 14 days in 2004 and 44 days in 2005. We are searching these data for evidence of transits caused by other bodies in the same orbital plane as the known planet HD 209458b. This, in part, will test some theories of the dynamical stabilisation of that planet's small orbit which invoke other smaller bodies in similar orbits undergoing momentum interactions.
Preliminary analysis of the 2004 data rules out any bodies with periods of 1 week or shorter with radii greater than about 0.3 Jupiter radii (about 3 Earth radii). The 2005 data quadrupule the total time coverage and should lower that detection threshold in radius and increase it in period. The analysis of the entire data set is currently in progress.
Croll Bryce
Guenther David B.
Kuschnig Rainer
Lin Dacheng
Matthews Jaymie M.
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